Good-Win Racing Mazda Performance Parts

Porterfield R4-1 RACE RX8 Brake Pads FRONT FOR OUR RACING BRAKE RB4000 FOUR PISTON CALIPERS

04-11

RX8 2004-2011 · Brakes


Part Number: 61-0355RB

Application: 04-11

Price: $159.00

Quantity:

Porterfield R4-1 RACE RX8 Brake Pads FRONT FOR OUR RACING BRAKE RB4000 FOUR PISTON CALIPERS
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This high friction racing material has grown to be a very popular choice for drivers who need the highest possible friction with a low pad temperature. Developed and tested in the vintage racing community the R4-1 gives an average coefficient of friction of .56 with peak levels up to .600. Having tremendous stopping power, the R4-1 pad material can reach upwards of .5 friction level when pad temperature is a very low 200 F . Drivers can still have a high friction brake pad without worry of the pad becoming too cold to be effective when the car is driven only moderately. For use when pad temperatures are under 600 F and peak temperatures are not over 1000 F. Widely used on Vintage GT and formula cars the R4-1 has gained great popularity as an excellent auto-cross, off-road and rally-cross pad material. Great modulation, consistent pedal feedback and the same rotor friendliness as our other carbon kevlar compounds. .

BRIAN'S APPLICATION NOTES: This is the MOST aggressive pad you can actually leave on the car between events that has heat range to handle normal street use too....at least in warmer climates. For our RACING BRAKE RX8 big Brake Front kits with RB4000 Caliper shown below (notice PAIR of bridge bolts).

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REVIEWS

Roadstersport II was a great purchase, easy install, and sounds great.

-- Denny

First I want to again thank you for working with me on this muffler. I have almost 100 miles on it now, and it has a nice mellow sound. a little Bass, but not too much. A little louder than stock, but not too loud. Plus it is nice inside the car with the top up. I am happy so far I bought this one.

I belong to a local Miata club, and am very active with it. When Spring comes I will tell everyone how much I like the muffler, and how great you are to work with. Maybe I can get some extra business for you.

-- Bill